/*
 * Core UI components — Step 7.
 * Built in isolation, confirmed visually, then wired into templates.
 */

.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: var(--space-2);
	font-family: var(--font-body);
	font-weight: var(--fw-semibold);
	font-size: var(--fs-sm);
	line-height: 1;
	padding: var(--space-3) var(--space-5);
	border-radius: var(--radius-md);
	border: 1px solid transparent;
	cursor: pointer;
	transition: transform var(--duration-fast) var(--ease-standard),
		box-shadow var(--duration-fast) var(--ease-standard),
		background-color var(--duration-fast) var(--ease-standard),
		border-color var(--duration-fast) var(--ease-standard),
		color var(--duration-fast) var(--ease-standard);
}

.btn:hover {
	transform: translateY(-1px);
}

.btn:active {
	transform: translateY(0);
}

.btn--primary {
	background: var(--color-accent);
	color: var(--color-accent-ink);
}

.btn--primary:hover {
	background: var(--color-accent-hover);
	color: var(--color-accent-ink);
	box-shadow: var(--glow-accent);
}

.btn--secondary {
	background: var(--color-accent-2);
	color: var(--color-accent-ink);
}

.btn--secondary:hover {
	background: var(--color-accent-2-hover);
	color: var(--color-accent-ink);
	box-shadow: var(--glow-accent-2);
}

.btn--ghost {
	background: transparent;
	border-color: var(--color-border-strong);
	color: var(--color-text);
}

.btn--ghost:hover {
	border-color: var(--color-accent);
	color: var(--color-accent);
}

.btn--sm {
	padding: var(--space-2) var(--space-4);
	font-size: var(--fs-xs);
}

.btn--block {
	width: 100%;
}

/* =========================================================
   Badges / tags
   ========================================================= */
.badge {
	display: inline-flex;
	align-items: center;
	gap: var(--space-1);
	font-family: var(--font-mono);
	font-size: var(--fs-xs);
	font-weight: var(--fw-medium);
	letter-spacing: 0.02em;
	text-transform: uppercase;
	padding: var(--space-1) var(--space-3);
	border-radius: var(--radius-full);
	border: 1px solid var(--color-border-strong);
	color: var(--color-text-muted);
	background: var(--color-surface);
	white-space: nowrap;
}

.badge--accent {
	border-color: rgba(0, 229, 199, 0.4);
	color: var(--color-accent);
	background: rgba(0, 229, 199, 0.08);
}

.badge--accent-2 {
	border-color: rgba(255, 107, 74, 0.4);
	color: var(--color-accent-2);
	background: rgba(255, 107, 74, 0.08);
}

.badge--success {
	border-color: rgba(46, 204, 143, 0.4);
	color: var(--color-success);
	background: rgba(46, 204, 143, 0.08);
}

.badge--warning {
	border-color: rgba(255, 176, 32, 0.4);
	color: var(--color-warning);
	background: rgba(255, 176, 32, 0.08);
}

.tag-list {
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-2);
	list-style: none;
	margin: 0;
	padding: 0;
}

/* =========================================================
   Article card
   ========================================================= */
.card {
	display: flex;
	flex-direction: column;
	background: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-lg);
	overflow: hidden;
	height: 100%;
}

.card__media {
	position: relative;
	aspect-ratio: 16 / 10;
	background: var(--color-surface-raised);
	overflow: hidden;
}

.card__media img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform var(--duration-slow) var(--ease-standard);
}

.card:hover .card__media img {
	transform: scale(1.045);
}

.card__body {
	padding: var(--space-5);
	display: flex;
	flex-direction: column;
	gap: var(--space-3);
	flex: 1;
}

.card__meta {
	display: flex;
	align-items: center;
	gap: var(--space-3);
	font-family: var(--font-mono);
	font-size: var(--fs-xs);
	color: var(--color-text-faint);
	text-transform: uppercase;
	letter-spacing: 0.03em;
}

.card__title {
	font-size: var(--fs-lg);
	margin: 0;
	line-height: var(--lh-snug);
}

.card__title a {
	color: var(--color-text);
}

.card__title a::after {
	content: '';
	position: absolute;
	inset: 0;
}

.card__title a:hover {
	color: var(--color-accent);
}

.card {
	position: relative;
}

.card__excerpt {
	color: var(--color-text-muted);
	font-size: var(--fs-sm);
	margin: 0;
	flex: 1;
}

.card__footer {
	margin-top: auto;
	display: flex;
	align-items: center;
	justify-content: space-between;
	font-size: var(--fs-xs);
	color: var(--color-text-faint);
	position: relative;
	z-index: 1;
}

/* =========================================================
   Product card (external/affiliate)
   ========================================================= */
.product-card {
	display: flex;
	flex-direction: column;
	background: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-lg);
	overflow: hidden;
	height: 100%;
	position: relative;
}

.product-card__media {
	aspect-ratio: 1 / 1;
	background: var(--color-surface-raised);
	display: flex;
	align-items: center;
	justify-content: center;
	padding: var(--space-5);
}

.product-card__media img {
	max-width: 100%;
	max-height: 100%;
	object-fit: contain;
}

.product-card__body {
	padding: var(--space-5);
	display: flex;
	flex-direction: column;
	gap: var(--space-2);
	flex: 1;
}

.product-card__source {
	font-family: var(--font-mono);
	font-size: var(--fs-xs);
	color: var(--color-text-faint);
	text-transform: uppercase;
	letter-spacing: 0.03em;
}

.product-card__title {
	font-size: var(--fs-md);
	margin: 0;
	color: var(--color-text);
}

.product-card__price {
	font-family: var(--font-display);
	font-weight: var(--fw-bold);
	font-size: var(--fs-lg);
	color: var(--color-accent);
	margin-top: var(--space-1);
}

.product-card__price-old {
	font-family: var(--font-body);
	font-weight: var(--fw-regular);
	font-size: var(--fs-sm);
	color: var(--color-text-faint);
	text-decoration: line-through;
	margin-left: var(--space-2);
}

.product-card__cta {
	/* Pushes the button to the bottom of the card regardless of how much
	   description/price content sits above it, so buttons align across
	   a row of cards with different text lengths. */
	margin-top: auto;
	padding-top: var(--space-3);
}

/* =========================================================
   Navigation bar
   ========================================================= */
.nav-primary {
	position: relative;
}

.nav-primary__list {
	display: flex;
	align-items: center;
	gap: var(--space-6);
	list-style: none;
	margin: 0;
	padding: 0;
}

.nav-primary__list a {
	font-family: var(--font-display);
	font-size: var(--fs-sm);
	font-weight: var(--fw-medium);
	color: var(--color-text-muted);
	padding: var(--space-2) 0;
	position: relative;
}

.nav-primary__list a:hover,
.nav-primary__list .current-menu-item > a {
	color: var(--color-text);
}

.nav-primary__list a::after {
	content: '';
	position: absolute;
	left: 0;
	right: 100%;
	bottom: -2px;
	height: 2px;
	background: var(--color-accent);
	transition: right var(--duration-normal) var(--ease-standard);
}

.nav-primary__list a:hover::after,
.nav-primary__list .current-menu-item > a::after {
	right: 0;
}

.menu-toggle {
	display: none;
	flex-direction: column;
	justify-content: center;
	gap: 5px;
	width: 40px;
	height: 40px;
	background: transparent;
	border: 1px solid var(--color-border-strong);
	border-radius: var(--radius-sm);
	cursor: pointer;
	padding: 0;
}

.menu-toggle span {
	display: block;
	height: 2px;
	width: 18px;
	margin-inline: auto;
	background: var(--color-text);
	transition: transform var(--duration-fast) var(--ease-standard),
		opacity var(--duration-fast) var(--ease-standard);
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
	transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
	opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
	transform: translateY(-7px) rotate(-45deg);
}

/* =========================================================
   Footer
   ========================================================= */
.site-footer__grid {
	display: grid;
	grid-template-columns: 1.5fr repeat(2, 1fr);
	gap: var(--space-7);
	padding-block-end: var(--space-6);
}

.site-footer__brand {
	font-family: var(--font-display);
	font-weight: var(--fw-bold);
	color: var(--color-text);
	font-size: var(--fs-md);
	margin-bottom: var(--space-2);
}

.site-footer__tagline {
	color: var(--color-text-muted);
	font-size: var(--fs-sm);
	max-width: 32ch;
}

.site-footer__heading {
	font-family: var(--font-mono);
	font-size: var(--fs-xs);
	text-transform: uppercase;
	letter-spacing: 0.05em;
	color: var(--color-text-faint);
	margin-bottom: var(--space-3);
}

.site-footer__list {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-direction: column;
	gap: var(--space-2);
}

.site-footer__list a {
	color: var(--color-text-muted);
	font-size: var(--fs-sm);
}

.site-footer__list a:hover {
	color: var(--color-accent);
}

.site-footer__bottom {
	border-top: 1px solid var(--color-border);
	padding-block-start: var(--space-5);
	display: flex;
	align-items: center;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: var(--space-3);
	font-size: var(--fs-xs);
	color: var(--color-text-faint);
}

/* =========================================================
   Forms
   ========================================================= */
.form-field {
	display: flex;
	flex-direction: column;
	gap: var(--space-2);
	margin-bottom: var(--space-4);
}

.form-field label {
	font-size: var(--fs-sm);
	font-weight: var(--fw-medium);
	color: var(--color-text);
}

.form-field .form-hint {
	font-size: var(--fs-xs);
	color: var(--color-text-faint);
}

input[type="text"],
input[type="email"],
input[type="url"],
input[type="search"],
input[type="tel"],
input[type="number"],
input[type="password"],
textarea,
select {
	-webkit-appearance: none;
	appearance: none;
	background: var(--color-surface);
	border: 1px solid var(--color-border-strong);
	border-radius: var(--radius-md);
	color: var(--color-text);
	padding: var(--space-3) var(--space-4);
	width: 100%;
	transition: border-color var(--duration-fast) var(--ease-standard),
		box-shadow var(--duration-fast) var(--ease-standard);
}

input[type="text"]:hover,
input[type="email"]:hover,
input[type="url"]:hover,
input[type="search"]:hover,
input[type="tel"]:hover,
input[type="number"]:hover,
input[type="password"]:hover,
textarea:hover,
select:hover {
	border-color: var(--color-text-faint);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="url"]:focus,
input[type="search"]:focus,
input[type="tel"]:focus,
input[type="number"]:focus,
input[type="password"]:focus,
textarea:focus,
select:focus {
	outline: none;
	border-color: var(--color-accent);
	box-shadow: 0 0 0 3px rgba(0, 229, 199, 0.15);
}

textarea {
	min-height: 140px;
	resize: vertical;
}

select {
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238b92a0' stroke-width='1.5' fill='none' fill-rule='evenodd'/%3E%3C/svg%3E");
	background-repeat: no-repeat;
	background-position: right var(--space-4) center;
	padding-right: var(--space-7);
}

.form-check {
	display: flex;
	align-items: center;
	gap: var(--space-3);
}

input[type="checkbox"],
input[type="radio"] {
	-webkit-appearance: none;
	appearance: none;
	width: 18px;
	height: 18px;
	flex-shrink: 0;
	border: 1px solid var(--color-border-strong);
	background: var(--color-surface);
	cursor: pointer;
	position: relative;
	transition: border-color var(--duration-fast) var(--ease-standard),
		background-color var(--duration-fast) var(--ease-standard);
}

input[type="checkbox"] {
	border-radius: var(--radius-sm);
}

input[type="radio"] {
	border-radius: var(--radius-full);
}

input[type="checkbox"]:checked,
input[type="radio"]:checked {
	background: var(--color-accent);
	border-color: var(--color-accent);
}

input[type="checkbox"]:checked::after {
	content: '';
	position: absolute;
	left: 5px;
	top: 1px;
	width: 5px;
	height: 9px;
	border: solid var(--color-accent-ink);
	border-width: 0 2px 2px 0;
	transform: rotate(45deg);
}

input[type="radio"]:checked::after {
	content: '';
	position: absolute;
	inset: 4px;
	border-radius: var(--radius-full);
	background: var(--color-accent-ink);
}

fieldset {
	border: 1px solid var(--color-border);
	border-radius: var(--radius-md);
	padding: var(--space-4);
}

legend {
	font-family: var(--font-mono);
	font-size: var(--fs-xs);
	text-transform: uppercase;
	letter-spacing: 0.05em;
	color: var(--color-text-faint);
	padding-inline: var(--space-2);
}